Intelligent operation and management system of sewage treatment plant

Abstract

The utility model relates to sewage treatment technical field, concretely relates to a kind of intelligent operation management system of sewage treatment plant, including control module;Secondary sedimentation tank bottom is provided main return mud pipe and auxiliary return mud pipe, main return mud pipe, auxiliary return mud pipe and secondary sedimentation tank connecting end are respectively provided first jet pipe, second jet pipe, main return mud pipe and auxiliary return mud pipe top are respectively provided sludge backflow mechanism and electromagnetic regulating mechanism, and sludge backflow mechanism and sludge backflow mechanism are electrically connected with control module, aeration tank is communicated aeration equipment by aeration pipe, first jet pipe is communicated aeration equipment by aeration auxiliary pipe, second jet pipe is communicated aeration equipment by aeration branch pipe;Secondary sedimentation tank is connected sampling device, and sampling device includes camera, camera shoots sludge sedimentation image in set time, and is transferred to control module;The utility model sets up sludge backflow double channel, selects appropriate backflow channel according to sludge amount in secondary sedimentation tank, avoid pipeline silt, effectively maintain sewage treatment system operation.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an intelligent operation and management system for wastewater treatment plants. Background Technology

[0002] With technological advancements, wastewater treatment plant operations are evolving towards intelligent systems, integrating cutting-edge technologies such as the Internet of Things, big data, cloud computing, and artificial intelligence. However, intelligent wastewater treatment plants involve numerous processes, some of which require continuous operation, resulting in high energy consumption. Energy consumption during wastewater treatment is primarily influenced by factors such as process design, equipment operation, influent water quality, and operational management. The sludge return ratio is a crucial parameter affecting wastewater treatment energy consumption. Current technologies utilize machine learning algorithms to optimize energy consumption; however, adjusting the sludge return ratio alters the influent and sludge return flow rates in the secondary sedimentation tank. This can lead to situations where there is a large or small amount of sludge requiring rapid response, potentially impacting the efficient operation of the wastewater treatment system.

[0003] Therefore, there is a need to provide a smart operation and management system for wastewater treatment plants to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a smart operation and management system for sewage treatment plants. By integrating multiple technologies to reduce the energy consumption of sewage treatment plant operation, a dual sludge return channel is set up. The appropriate return channel is selected according to the amount of sludge in the secondary sedimentation tank to avoid pipe blockage and effectively maintain the operation of the sewage treatment system.

[0005] This utility model provides the following technical solution.

[0006] A smart operation and management system for a wastewater treatment plant includes a cloud computing module, a 3D dynamic model module, an intelligent analysis module, and a control module, which are connected together. The data acquisition module includes Internet of Things (IoT) sensors, including a biological water quality monitoring device installed in an aeration tank and a secondary sedimentation tank. A main sludge return pipe and an auxiliary sludge return pipe are installed at the bottom of the secondary sedimentation tank. A first jet pipe and a second jet pipe are respectively installed at the connection points of the main and auxiliary sludge return pipes with the secondary sedimentation tank. A sludge return machine is installed at the input section of the first jet pipe. The system includes an electromagnetic adjustment mechanism at the input section of the second jet pipe; the aeration tank is connected to the aeration equipment via an aeration pipe; the first suction port on the first jet pipe is connected to the aeration equipment via an aeration auxiliary pipe; the second suction port on the second jet pipe is connected to the aeration equipment via an aeration branch pipe; the electromagnetic adjustment mechanism and the sludge return mechanism are electrically connected to the control module; the control module controls the opening or closing of the sludge return mechanism and the electromagnetic adjustment mechanism; the data acquisition module also includes a sampling device connected to the secondary sedimentation tank, which includes a camera that captures sludge settling images within a set time and transmits them to the control module.

[0007] Preferably, inclined plates are fixedly installed on both sides of the lower part of the secondary sedimentation tank, and a support plate is fixedly installed between the two inclined plates. The middle part of the support plate is connected to the main sludge return pipe, and one side of the support plate is fixedly connected to the auxiliary sludge return pipe. The electromagnetic adjustment mechanism is fixedly installed above the auxiliary sludge return pipe, and the sludge return mechanism is installed above the main sludge return pipe.

[0008] Preferably, the electromagnetic adjustment mechanism includes a first blocking block, which blocks or opens the auxiliary sludge return pipe port through an electromagnetic structure, and the sludge return mechanism includes a second blocking block, which blocks or opens the main sludge return pipe port through an electromagnetic structure. The upper parts of both the first and second blocking blocks are conical structures.

[0009] Preferably, the electromagnetic adjustment mechanism further includes a mounting shell, a sliding rod, and an electromagnetic plate two. The mounting shell is fixedly mounted on the inclined plate, and a fixing block is fixedly mounted inside the mounting shell. A connecting cavity is provided inside the fixing block, and an electromagnetic plate two is fixedly mounted above the connecting cavity. The electromagnetic plate two is fixedly connected to the sliding rod through a spring fixedly mounted in the middle. The two ends of the sliding rod are slidably connected to the connecting cavity, and the lower end of the sliding rod extends to the outside of the mounting shell and is fixedly connected to the sealing block. The electromagnetic plate two and the electromagnetic plate one are attracted when energized and separated when de-energized.

[0010] Preferably, the inlets of the aeration tank and the secondary sedimentation tank are respectively equipped with a first water pump and a second water pump. The biological water quality monitoring device also includes a water quality detector installed at the outlet of the secondary sedimentation tank. The first water pump, the second water pump, the water quality detector, electromagnetic plate one, and electromagnetic plate two are all electrically connected to the control module.

[0011] Preferably, the sampling device further includes a sampling pump and a sedimentation column. The sampling pump is electrically connected to the control module. The sampling pump is installed in the secondary sedimentation tank. The output end of the sampling pump is connected to the sedimentation column through a pipeline. The camera captures images of the sedimentation column and transmits the images to the control unit. The control module analyzes and calculates the images of the sedimentation column according to the set logic and generates corresponding instructions to control the opening of the main return sludge pipe or the auxiliary return sludge pipe.

[0012] Preferably, it also includes a visual interaction module, which is electrically connected to the control module, and the visual module allows the administrator to interact with the computer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model provides a smart operation and management system for wastewater treatment plants. By integrating advanced technologies such as the Internet of Things, cloud computing, big data analytics, and artificial intelligence, it collects real-time data on various equipment and processes within the wastewater treatment plant. Based on a three-dimensional dynamic model of the wastewater treatment system and a set logic algorithm, it sets up a dual sludge return channel. The sludge return flow rate is adjusted according to sludge settling. Image information collected by the acquisition device is transmitted to the control module. The control module extracts and calculates the sludge settling ratio and selects an appropriate return method based on the sludge settling ratio. The dual return channel adapts to different sludge volumes. A first suction inlet is set on the first jet pipe. The aeration auxiliary pipe is connected to the aeration equipment, and the second suction port on the second jet pipe is connected to the aeration equipment through the aeration branch pipe. The returned sludge is fully mixed with oxygen in the first jet pipe of the main sludge return pipe or the second jet pipe of the auxiliary sludge return pipe, which increases the dissolved oxygen content in the sludge entering the aeration tank. When entering the aeration tank, it can adapt to water quality changes more quickly, reduce the impact on the aeration tank treatment system, and effectively prevent sludge clogging at the end of the main sludge return pipe or the opening of the auxiliary sludge return pipe. It also controls energy use, improves resource recycling rate and treatment efficiency, achieves cost reduction and efficiency improvement, energy saving and emission reduction, and can also effectively maintain the operation of the sewage treatment system. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the operation of a smart operation management system for a sewage treatment plant as described in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a smart operation and management system for a sewage treatment plant as described in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the sedimentation tank, electromagnetic adjustment mechanism, and sampling device in Embodiment 2 of this utility model;

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of region A in the middle.

[0020] Reference numerals: 1. Secondary sedimentation tank; 11. Inclined plate; 12. Main sludge return pipe; 13. Auxiliary sludge return pipe; 14. Support plate; 2. Electromagnetic adjustment mechanism; 21. Mounting shell; 22. Fixing block; 23. Electromagnetic plate one; 24. Sliding rod; 25. Spring; 26. Electromagnetic plate two; 27. Blocking block one; 31. Sampling pump; 32. Sedimentation column; 33. Camera; 4. Sludge return mechanism; 41. Connecting shell; 42. Blocking block two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Specific implementation examples Figure 1-4 The diagram shows a smart operation and management system for a wastewater treatment plant, comprising a data acquisition module, a cloud computing module, a 3D dynamic model module, an intelligent analysis module, a visualization interaction module, and a control module. The data acquisition module includes Internet of Things (IoT) sensors, which include primary water quality monitoring devices, biological water quality monitoring devices, and advanced water quality monitoring devices. The primary water quality monitoring devices are installed in the grit chamber and primary sedimentation tank, mainly detecting flow rate, pH value, suspended solids, chemical oxygen demand (COD), etc. The biological water quality monitoring devices are installed in the aeration tank and secondary sedimentation tank 1, mainly detecting sludge settling ratio, sludge volume index, dissolved oxygen, COD, ammonia nitrogen, and sludge return ratio, etc. The advanced water quality monitoring devices are installed in the filter tank, mainly monitoring data such as suspended solids, trace pollutants, disinfection indicators, and turbidity.

[0023] The cloud computing module, 3D dynamic model module, intelligent analysis module, and control module are all built on the visualization interaction module, and interact with the administrator through the visualization interaction module. The visualization interaction module includes a PC or mobile terminal, through which the administrator inputs commands to view the sewage treatment process and key indicators such as energy consumption and treatment efficiency. The control module is responsible for the logical control of the intelligent operation management system and the equipment drive of the sewage treatment process, enabling the data acquisition module, cloud computing module, 3D dynamic model module, intelligent analysis module, and visualization interaction module to work together.

[0024] In the IoT sensors, the primary water quality monitoring device, the biological water quality monitoring device, and the deep water quality monitoring device are all electrically connected to the control module. The control module transmits the acquired data as historical data to the cloud computing module for processing and storage. The cloud computing module adopts a distributed storage architecture, organizes the historical data into process parameters, equipment parameters, and environmental parameters, performs data cleaning and other preprocessing, normalizes the equipment parameters and environmental parameters in the preprocessed historical data to form a combined vector, classifies it according to different acquisition cycles, and builds a sample database.

[0025] The 3D dynamic model module can construct a 3D dynamic model of the wastewater treatment system based on the specific operating conditions of the wastewater treatment plant. It can extract sample databases to simulate the wastewater treatment operation status under different collection cycles. The intelligent analysis module uses the combination vectors of the collection cycle set in the sample database to calibrate the 3D dynamic model. It sets the pump frequency and sludge return flow of the first and second pumps as adjustable parameters and puts them into the 3D dynamic model. Based on the preset PPO reinforcement learning algorithm, the intelligent analysis module obtains the pump frequency and sludge return flow collected by the IoT sensors in the current collection cycle and inputs them into the 3D dynamic model. It dynamically adjusts the pump frequency and sludge return flow for prediction training and outputs the final optimization strategy. The control module receives the obtained optimization strategy, analyzes the corresponding instructions, and transmits them to the IoT sensors to regulate the wastewater treatment process, so as to achieve the effect of reducing energy consumption in the wastewater treatment process.

[0026] The biological water quality monitoring device also includes a water quality analyzer. A first water pump and a second water pump are respectively installed at the inlet of the aeration tank and the secondary sedimentation tank 1. The control module is electrically connected to the first water pump and the second water pump respectively, and transmits adjustment signals to the first water pump and the second water pump. When the first water pump is turned on, it controls the water after primary treatment to enter the aeration tank. When the second water pump is turned on, it controls the water after treatment in the aeration tank to enter the secondary sedimentation tank 1 for further treatment. A water quality analyzer is installed at the outlet of the secondary sedimentation tank 1 to detect the water quality after treatment. A main sludge return pipe 12 and an auxiliary sludge return pipe 13 are respectively installed at the bottom of the secondary sedimentation tank 1. The flow rate of the main sludge return pipe 12 is greater than that of the auxiliary sludge return pipe 13. The aeration tank is connected to the aeration equipment, and the aeration equipment introduces oxygen into the aeration tank through the aeration pipe.

[0027] The ends of the main sludge return pipe 12 and the auxiliary sludge return pipe 13 that connect to the secondary sedimentation tank 1 are both designed as Venturi jet pipes. The aeration equipment is also equipped with an aeration auxiliary pipe, which is connected to the aeration branch pipe. The aeration auxiliary pipe is connected to the main sludge return pipe 12, and the aeration branch pipe is connected to the auxiliary sludge return pipe 13.

[0028] The secondary sedimentation tank 1 guides the settled sludge to the support plate 14 through inclined plates 11 fixedly installed on both sides of the lower part. The support plate 14 is fixedly connected to the inclined plates 11. The middle part of the support plate 14 is connected to one end of the main sludge return pipe 12, and one side of the support plate 14 is fixedly connected to the auxiliary sludge return pipe 13. A sludge return mechanism 4 is installed at the port where the main sludge return pipe 12 is connected to the support plate 14, and an electromagnetic adjustment mechanism 2 is installed at the port where the auxiliary sludge return pipe 13 is connected to the support plate 14. The sludge return mechanism 4 includes a connecting shell 41 and a second sealing block 42. The connecting shell 41 is fixedly installed on the inclined plate 11. The electromagnetic adjustment mechanism 2 includes a first sealing block 27. The first sealing block 27 blocks or opens the port of the auxiliary sludge return pipe 13 through an electromagnetic structure. The sludge return mechanism 4 has the same structure as the electromagnetic adjustment mechanism 2. The sludge return mechanism 4 includes a connecting shell 41 and a second sealing block 42. The connecting shell 41 is fixedly installed on the inclined plate 11, and the second sealing block 42 blocks or opens the port of the main sludge return pipe 12 through an electromagnetic structure.

[0029] The connection end between the main sludge return pipe 12 and the secondary sedimentation tank 1 is configured as a first jet pipe. A first suction port is provided on the outside of the mixing section of the first jet pipe, and the first suction port is connected to the aeration auxiliary pipe. The first jet pipe includes an input section, a mixing section, and a diffusion section. Sludge is introduced into the first jet pipe from the input section, fully mixed with oxygen in the mixing section, and flows out through the diffusion section. A flow valve is provided on the aeration auxiliary pipe, and the flow valve is electrically connected to the control module. The electromagnetic structure in the sludge return mechanism 4 is electrically connected to the control module. The control module adjusts the flow valve to open, and the control module controls the sludge return mechanism 4 to open the port of the main sludge return pipe 12. The aeration equipment inputs oxygen into the first jet pipe, and after mixing with the sludge in the mixing section of the first jet pipe, it flows back to the aeration tank for further treatment. The dissolved oxygen content in the sludge introduced into the aeration tank increases, allowing it to adapt to water quality changes more quickly when entering the aeration tank, reducing the stress on the aeration tank. The system handles the impact of sludge buildup, and the jet structure prevents sludge from accumulating and clogging in the main sludge return pipe 12. An electromagnetic regulating mechanism 2 is installed at the port connecting the auxiliary sludge return pipe 13 to the secondary sedimentation tank 1. The electromagnetic regulating mechanism 2 is electrically connected to the control module. A sludge suction pump is installed on the auxiliary sludge return pipe 13. The connection end between the auxiliary sludge return pipe 13 and the secondary sedimentation tank 1 is set as a second jet pipe. A second suction port is installed on the second jet pipe and is connected to an aeration branch pipe. An on / off valve is installed on the aeration branch pipe. Both the on / off valve and the sludge suction pump are electrically connected to the control module. The control module regulates the on / off valve and the sludge suction pump to open. The sludge suction pump causes the sludge to flow into the auxiliary sludge return pipe 13. The aeration equipment inputs oxygen into the second jet pipe, mixes it with the sludge in the second jet pipe, and transports it through the pipeline to the aeration tank for further treatment. The control module controls the electromagnetic regulating mechanism 2 to open the port of the auxiliary sludge return pipe 13, returning the sludge to the aeration tank for further treatment.

[0030] The electromagnetic adjustment mechanism 2 also includes a mounting shell 21, a fixing block 22, an electromagnetic plate 23, a sliding rod 24, a spring 25, and an electromagnetic plate 26. The mounting shell 21 is fixedly mounted on the inclined plate 11. A notch is provided at the lower end of the mounting shell 21 near the auxiliary sludge return pipe 13. The fixing block 22 is fixedly mounted inside the mounting shell 21. A connecting cavity is provided inside the fixing block 22. An electromagnetic plate 26 is fixedly mounted above the connecting cavity. The electromagnetic plate 26 is fixedly connected to the sliding rod 24 through the spring 25 fixedly mounted in the middle. Both ends of the sliding rod 24 are slidably connected to the connecting cavity. The lower end of the sliding rod 24 passes through the notch at the lower end of the mounting shell 21 and extends downward to the outside of the mounting shell 21. The sliding rod 24 is fixedly connected to the sealing block 27. The electromagnetic plate 26 and the electromagnetic plate 23 are attracted when energized and separated when de-energized. The upper parts of the sealing block 27 and the sealing block 22 are both conical, which facilitates the separation of sludge from the sealing block 27 and the sealing block 22, and helps the normal use of the electromagnetic adjustment mechanism 2 and the sludge return mechanism 4.

[0031] Electromagnetic plate 26 and electromagnetic plate 23 are electrically connected to the control module. The control module outputs adjustment commands. When electromagnetic plate 26 and electromagnetic plate 23 are energized and attracted, electromagnetic plate 23 drives the slide rod 24 and the sealing block 27 to move upward, and the spring 25 is compressed, exposing the port of the auxiliary sludge return pipe 13. When electromagnetic plate 26 and electromagnetic plate 23 are de-energized and separated, the spring force of the spring 25 drives the sealing block 27 to move downward, so that the sealing block 27 is connected to the port of the auxiliary sludge return pipe 13, preventing sludge from flowing from the auxiliary sludge return pipe 13.

[0032] The data acquisition module also includes a sampling device. The secondary sedimentation tank 1 is connected to the sampling device, which includes a sampling pump 31, a sedimentation column 32, and a camera 33. The sampling pump 31 and the camera 33 are electrically connected to the control module. The sampling pump 31 takes sludge mixture from the secondary sedimentation tank 1 according to the set sampling cycle and injects it into the sedimentation column 32. After static sedimentation for 30 minutes, the camera 33 can capture images of the sludge settling height and transmit the data images to the control unit. The control unit extracts the data and calculates the sludge settling ratio. If the sludge settling ratio is less than the minimum set value, an alarm is triggered indicating that the sludge concentration is low. The main sludge return pipe 12 is closed, while the auxiliary sludge return pipe 13 is open. If the sludge settling ratio is greater than the maximum set value, an alarm is triggered indicating that the sludge concentration is high. The main sludge return pipe 12 and the auxiliary sludge return pipe 13 are opened. If the sludge settling ratio is between the minimum and maximum set values, the main sludge return pipe 12 is kept open, while the auxiliary sludge return pipe 13 is closed.

Claims

1. A smart operation management system for a sewage treatment plant, characterized in that: The system includes a data acquisition module, a cloud computing module, a 3D dynamic model module, an intelligent analysis module, and a control module, which are interconnected. The data acquisition module includes IoT sensors, including a biological water quality monitoring device installed in the aeration tank and secondary sedimentation tank. A main sludge return pipe and an auxiliary sludge return pipe are installed at the bottom of the secondary sedimentation tank. A first jet pipe and a second jet pipe are respectively installed at the connection points of the main and auxiliary sludge return pipes with the secondary sedimentation tank. A sludge return mechanism is installed at the input section of the first jet pipe. An electromagnetic adjustment mechanism is installed in the input section of the jet pipe; the aeration tank is connected to the aeration equipment through the aeration pipe, the first suction port on the first jet pipe is connected to the aeration equipment through the aeration auxiliary pipe, and the second suction port on the second jet pipe is connected to the aeration equipment through the aeration branch pipe. The electromagnetic adjustment mechanism and the sludge return mechanism are electrically connected to the control module, and the control module controls the opening or closing of the sludge return mechanism and the electromagnetic adjustment mechanism; the data acquisition module also includes a sampling device connected to the secondary sedimentation tank. The sampling device includes a camera, which captures sludge settling images within a set time and transmits them to the control module.

2. The intelligent operation and management system of a sewage treatment plant according to claim 1, characterized in that: Inclined plates are fixedly installed on both sides of the lower part of the secondary sedimentation tank, and a support plate is fixedly installed between the two inclined plates. The middle part of the support plate is connected to the main sludge return pipe, and one side of the support plate is fixedly connected to the auxiliary sludge return pipe. The electromagnetic adjustment mechanism is fixedly installed above the auxiliary sludge return pipe, and the sludge return mechanism is installed above the main sludge return pipe.

3. The intelligent operation and management system for a wastewater treatment plant according to claim 2, characterized in that: The electromagnetic adjustment mechanism includes a first blocking block, which blocks or opens the auxiliary sludge return pipe port through an electromagnetic structure. The sludge return mechanism includes a second blocking block, which blocks or opens the main sludge return pipe port through an electromagnetic structure. The upper parts of both the first and second blocking blocks are conical.

4. The intelligent operation and management system for a wastewater treatment plant according to claim 3, characterized in that: The electromagnetic adjustment mechanism further includes a mounting shell, a sliding rod, and an electromagnetic plate two. The mounting shell is fixedly mounted on the inclined plate, and a fixing block is fixedly mounted inside the mounting shell. A connecting cavity is provided inside the fixing block, and an electromagnetic plate two is fixedly mounted above the connecting cavity. The electromagnetic plate two is fixedly connected to the sliding rod through a spring fixedly mounted in the middle. The two ends of the sliding rod are slidably connected to the connecting cavity, and the lower end of the sliding rod extends to the outside of the mounting shell and is fixedly connected to the sealing block. The electromagnetic plate two and the electromagnetic plate one are attracted when energized and separated when de-energized.

5. The intelligent operation and management system for a wastewater treatment plant according to claim 4, characterized in that: The aeration tank and the secondary sedimentation tank are respectively equipped with a first water pump and a second water pump at their inlets. The biological water quality monitoring device also includes a water quality detector installed at the outlet of the secondary sedimentation tank. The first water pump, the second water pump, the water quality detector, electromagnetic plate one, and electromagnetic plate two are all electrically connected to the control module.

6. The intelligent operation and management system for a wastewater treatment plant according to claim 1, characterized in that: The sampling device also includes a sampling pump and a sedimentation column. The sampling pump is electrically connected to the control module. The sampling pump is set in the secondary sedimentation tank. The output end of the sampling pump is connected to the sedimentation column through a pipeline. The camera captures images of the sedimentation column and transmits the images to the control unit. The control module analyzes and calculates the images of the sedimentation column according to the set logic and generates corresponding instructions to control the opening of the main return sludge pipe or the auxiliary return sludge pipe.

7. The intelligent operation and management system for a wastewater treatment plant according to claim 1, characterized in that: It also includes a visual interaction module, which is electrically connected to the control module, allowing the administrator to interact with the system.

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